Ore conveyer and classifier.



D. J. NEVILL. ORE CONVEYER AND GLASSIFIER.

APPLIGATION FILED Nov. s, 190e.

4 SHEETS-811111111.

D. J. NBVILL. ORB GONVEYBR AND GLASSIFIEB.

APPLIGATION FILED NOV. 5| 1908.

Patented Apr. 30, 1912.

4 SHEETS-SHEET 2.

D. J. NEVILL.

ORBOONVEYBR AND CLASSIFIER.

APPLIOATION FILED Nov. 5. 190s.

1 ,024,647. Patented A111130, 1912.

4 SHEETS-S HEBT 3.

wit man Snowdon nv A www.

I D. J. NEVILL. ORE CONVEYER AND CLASSIFIER. APPLICATION FILED Nov. 5,190e.

1,024,647. Patented Apr.3o,1912.

4 SHEETS-SHEET 4.

`7 7&1 AL

@FlQE DAVID J'. NEVILL, OF DENVER, COLORADO, ASSIG-NOR T0 JOHN VANNOSTRAND DORR, 0F LEAD, SOUTH DAKOTA.

ORE CONVEYER AND CLASSIFIER.

recrear.'

Specification of Letters Patent.

Patented Apr. 39, 1912.

Application led November 5, 1908. Serial No. 461,211.

To all whom it may concern.:

Be it known that I, DAVID J. NEVILL, who

useful Improvements in Ore Conveyers andv Classifiers; and I do herebydeclare the following to be a full, clear, and eXact description of theinvention, such as will enable others skilled in the art to whichitvappertains to make and use the same.

This invention relates to ore conveyers and classifiers, and especiallyto mechanical movements for actuating the rakers of the ore conveyersand classifiers.

An object of the present invention is to provide an ore conveyor andclassifier having a raker or rakers therein which may be operated atdifferent levels.

A further object of the invention is to provide in an ore conveyer andclassifier a raker or rakers, the different ends of which may beindependently raised or lowered relative to the bed.

A further object of the invention is to provide in an ore conveyer andclassifier improved mechanism impartinga new and desirable motion to therakers.

With these and other objects in view, the invention comprises certainnovel constructions, combinations and arrangements of parts, as will behereinafter fully described and claimed.

In the drawings z-Figure 1 is a perspective view of the improvedore'conveyer and classifier. Fig. 2 is a view of the conveyer andclassifier in side elevation with the side walls of the body removedshowing the rakers in side elevation. Fig. 3 is atop plan view. of theore conveyer and classifier. Fig. 4 is a view of the operating mechanismat the upper end of the conveyor and classifier. Fig. 5 is a transverseView of the rakers and operating mechanism.

Like characters of reference designate corresponding parts throughoutthe several views.

The improved ore conveyer and classifier forming the subject-matter ofthis application comprises a settling trough having a bed 10, side walls11, and a low central partition 12, dividing the body into twolongitudinal compartments separated by the low upper ends the partitionand such body supported at an inclination in any approved manner as bythe base, 13.. Upon the base or body are .erected uprights 14 and 15carrying at their upper ends shafts 16 and 17, respectively, upon whichsaid shafts are respectively pivoted bell crank levers 18 and 19.

From the horizontally extending arms of the bell crank levers 18 and 19depend links or hangers 20 and 21 carrying at their lower ends universaljoints 22 and 23, respectively, connected pivotally with supports 24 and25. At their lower extremities or bases the supports 24 and 25 areconnected with longitudinally extending frame pieces 26 forming the mainframe of the rakes which said frame pieces 26 are connected by laterallyextending cross-pieces 27, the frame pieces 26`being preferablyconstructed of channel iron, while the cross-pieces 27 are preferablyconstructed of angle iron, as shown part-icularly in Fig. 2.

Connecting the upper extremity of the bell crank levers 18 and 19 is arod comprising thesections 28 and 29 connected by a turn buckle 30whereby both of the bell crank levers will be operated in unison, butthe angle of such bell crank levers relative to each other may bechanged by manipulating the turn buckle 30, and shortening orlengthening the rod composed of the sections 28 and 29.

At the end of the body uprights 31 and 32 are erected, and a power shaft33 journaled thereon carrying any approved means for applying powerthereto as the belt pulley 34, and with a pinion 35 rigidly carriedlarly journaled upon the uprights 32. Upon opposite sides of theuprights 32 theshaft 37 carries cams 38 and A39, respectively. Pivotedupon the uprights 31 and 32 are also levers 40 and 41 having at theirlower ends rollers 42- and 43, bearing upon the peripheries of the cams38 and 39. At their cated as indicated at 44 producing thereby a bearingslot in which are pivotally mounted cross-heads or pins 45 and 46,carried by sleeves 47 and 48, respectively, through which said sleevesextend rods 49 and 50 levers 40 and 41 are bifurrespectively. The rods49 and 50 are screwl threaded as at 51 and inserted through yokes orstirrups 52 and 53, whereby a rotation of the rods 49 and 50 will varythe distance between the sleeves 47 and 48, and the yokes etc., from themachine.

In operation the water, sand and slime is admitted to the settlingtrough through the feed trough 6l' in the usual way and stands at the.level indicated by the dotted line in Fig. 2. The solid materialsettles to the bottom of the trough while the liquid and slime flowsover into the discharge trough 62. The trough may, when desired, bedrained through a discharge opening 63. rlhe rake mechanism is set` inmotion by rotating the drive shaft, 33 which transmits motion to theshaft 37, thus rotating the cams 36 and 39 to give an irregular motionto the levers 40 and 4l. By reason ot the rods 49 and 50 connecting thelevers with the bell crank levers 18 and the rods connecting the bellcrank levers, the motionl@ and 19, which motion is transmitted through.the links or hangers 20 and 2l to the supports 24 and 25, and carryingtherewith the rakes. Art the same time the entire 'rake structure isgiven a longitudinal motion by the rotation of the crank arms 55 and 56,which motion is transmitted through the pitmen 59. llt will thus be seenthat the cams furnish an irregular up and down reciprocating motion tothe rakes while the crank arms transmit regular longitudinalreciprocating motion 'to the rake, the resultant motion being that therakers are drawn. toward the front ot'the machine,while down, and movedrearwardly ot the lmachine, while raised. rThe solid material is thusmoved by the rakes to the discharge end ot the machine while the slimeeand other .liquid material tlow over into the discharge reageer tion thecrank arms 53 and 54 are manipulated to raise the entire rakesuihciently to permit operation and to rake oft only7 part of thesettled'material. As the machine continues to operate the rakes arelowered by the reverse manipulation ot the crank arms 53 and 54 until innormal working position.

it times it is desirable to work the rakes with the opposite ends at adiierent height above the bed of the machine and this is accomplished bymanipulating the turn4 buckle 30 increasing or decreasing the length ofthe connectingrod whereby when the rod is shortened the lower end of'the rake is raised and when lengthened the lower end is lowered..'lakenin conjunction with the manipulation. of the crank arms 53 and 54,the rakes may be given any necessary .operative relation to the bed otthe machine.

lhat l claim. is

l. An ore conveyor and classilier, cornprising a settling trough, a rakemounted to reciprocate therein, bell crank levers, means for operatingthem, and links or hangers connecting the bell crank levers with therakes and which-have universal joints therewith.,

2. ln an. ore conveyor and classifier, the combination ot a settlingtrough, a rake mounted to reciprocate therein, hell-crank levers mountedat opposite ends ot the trough, jointed connections between the rake andthe levers, a rod connecting the hellcrank levers, an operating lever, arod connecting this lever with the bell-crank lever at the delivery endot the apparatus, and means for adjusting the .length ot the rod wherebyboth. bell-crank levers may be moved simultaneously to raise the rake 1nthe trough and to thus adjust its position therein.

3. ln an ore conveyor and classilier, the combination. vof a settlingtrough, a rake mounted to reciprocate therein, lcell crank leversmount-ed at opposite ends the trough, jointed connections between therake and the levers, a rod connecting the bell crank levers, devices:tor adjusting the length oit the rod, an operating lever, rodconnecting this lever with the bell crank lever at the delivery end otthe apparatus, and means for adjusting the length et the rod wherebybotli bell crank levers may be moved simultaneously to raise the rake inthe trough and to thus adjust its position therein.

ln testimony whereoiE l have attived my signature in presence ot twowitnesses.

Dillll) d. lll .s lllili.'

l/litnesses:

Canne tlfrrirnnnnn, Arianna 1L. Voet.

